Diff: Calculate.cpp

Revision:

14:dee4cef00b32

Parent:

7:d6f78ba7c5f7

Child:

18:bb632df62f51

Child:

20:0b2279011691

--- a/Calculate.cpp	Fri Jul 03 14:05:08 2015 +0000
+++ b/Calculate.cpp	Tue Jul 07 08:23:23 2015 +0000
@@ -1,27 +1,50 @@
-//#include "Calculate.h"
-//#include <iostream>
-//
-//float instSpeed()
-//{
-//    float trueDistance = trueDistance();   
-//    int time = 5; //sensorLater - sensorEarlier
-//    float speed = trueDistance / time;
-//    return speed;
-//}
-//float trueDistance(float radius,float distance_between_sensors)
-//{
-//       float trueDistance = 1;
-//       
-//       return trueDistance;
-//}
-//int sensors()
-//{
-//    
-//}
-//
-////float progression(bool Sensor1, bool Sensor2, bool Sensor3, bool sensor4, float radius) 
-////{
-////     float distance = 2.34E+22f;
-////  
-////    return distance;  
-////}
\ No newline at end of file
+#include "mbed.h"
+#include <time.h>
+#include <string>
+#include <iostream>
+ 
+Serial pc(USBTX, USBRX); // tx, rx                                          //defines the communication between MBed and pc
+DigitalIn sensor1(p8);                                                        //input from diode. Digital 1 is beam unbroken?
+DigitalIn sensor2(p9);  
+DigitalIn sensor3(p10);  
+DigitalIn sensor4(p11);  
+DigitalOut led(LED1);    
+                                                   //testing purposes 
+int calculate()
+{
+
+    pc.printf("new program \n");                                            //alert user of initialisation   
+      
+    time_t sensor1_time ;
+    time_t sensor2_time ; 
+    time_t sensor3_time ;
+    double sensor2Seconds; 
+    double sensor3Seconds;
+     
+     //  while(!sensor4)                                                      //until last sensor because that will be when its over.     
+      // {                                      
+        if (sensor1)                                                          //checks the digital input from the diode.
+        {
+         
+            led = 1;
+            sensor1_time = time(NULL);
+        }
+           if (sensor2)                                                          //checks the digital input from the diode.
+        {
+           
+            led = 1;
+            sensor2_time = time(NULL);
+            sensor2Seconds = difftime(sensor2_time, sensor1_time);
+            pc.printf(" 2nd time  %d : \t", sensor2Seconds);
+        }
+        if (sensor3)                                                          //checks the digital input from the diode.
+        {
+           
+            led = 1;
+              sensor3_time  = time(NULL);
+              sensor3Seconds  = difftime(sensor3_time, sensor2_time);
+              pc.printf("3rd time  %d : \t", sensor3Seconds );
+        }
+       
+  //     }
+}